\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Switching Vote (alternative definition), IV - RTI, US \label {tab:rtilongstrict}}
\begin{tabular}{l*{4}{c}}
\hline\hline
                &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                &\multicolumn{1}{c}{+Demographic}&\multicolumn{1}{c}{+Offshoring}&\multicolumn{1}{c}{+Skill}&\multicolumn{1}{c}{All}\\
\hline
Switching strict&                  &                  &                  &                  \\
RTI             &    0.339\sym{*}  &    0.388\sym{*}  &    0.419\sym{*}  &    0.821\sym{***}\\
                &  (0.198)         &  (0.211)         &  (0.218)         &  (0.259)         \\
Female          &   -0.910\sym{**} &   -0.961\sym{**} &   -1.027\sym{***}&   -1.111\sym{**} \\
                &  (0.375)         &  (0.381)         &  (0.394)         &  (0.486)         \\
Age             &    0.038\sym{***}&    0.042\sym{***}&    0.042\sym{***}&    0.025         \\
                &  (0.013)         &  (0.013)         &  (0.013)         &  (0.016)         \\
Foreign born    &   -2.445\sym{***}&   -2.377\sym{***}&   -2.421\sym{***}&   -2.132\sym{**} \\
                &  (0.654)         &  (0.701)         &  (0.704)         &  (0.900)         \\
Education       &   -0.259\sym{***}&   -0.241\sym{***}&   -0.242\sym{***}&   -0.233\sym{***}\\
                &  (0.074)         &  (0.078)         &  (0.079)         &  (0.081)         \\
Offshorability  &                  &   -0.559         &   -0.568         &   -1.154\sym{**} \\
                &                  &  (0.396)         &  (0.397)         &  (0.578)         \\
Skill-Specificity&                  &                  &   -0.037         &   -0.050         \\
                &                  &                  &  (0.038)         &  (0.045)         \\
Task-Tech       &                  &                  &                  &    0.007         \\
                &                  &                  &                  &  (0.642)         \\
Task-Inter      &                  &                  &                  &   -0.407         \\
                &                  &                  &                  &  (0.698)         \\
Unemployed      &                  &                  &                  &   -0.575         \\
                &                  &                  &                  &  (0.909)         \\
Black           &                  &                  &                  &   -5.275\sym{***}\\
                &                  &                  &                  &  (1.404)         \\
Non-Believer    &                  &                  &                  &   -2.122\sym{***}\\
                &                  &                  &                  &  (0.590)         \\
Income          &      Yes         &      Yes         &      Yes         &      Yes         \\
Regional controls &      Yes         &      Yes         &      Yes         &      Yes         \\
\hline
Observations    &      236         &      236         &      236         &      236         \\
R$^2 p$         &    0.264         &    0.272         &    0.274         &    0.475         \\
AIC             &  283.080         &  282.530         &  283.818         &  228.620         \\
\hline\hline
\multicolumn{5}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.1\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
